South Park is full of humans and monster alike. Eric Cartman is your local vampire, Kyle Broflovski is a werewolf, Stan Marsh happens to be a zombie. Kenny McCormick is a mummy. Butters Stotch is a ghost etc

School's hallway is filled with humans and monsters. Wendy Testaburger is standing with her friends. Cartman is busy arguing with the boys. The hallway is full with chatter